[an error occurred while processing this directive]

Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 290-294.DOI: 10.7677/ynzwyj201313051

• 研究论文 • 上一篇    下一篇


 张发起1, 高庆波1, 邢睿1、2, 张金华1、2, 王久利1、2, 陈世龙1   

  1. 1 中国科学院高原生物适应与进化重点实验室,中国科学院西北高原生物研究所,
    青海 西宁810001;2 中国科学院大学,北京100049
  • 收稿日期:2013-03-21 出版日期:2013-05-25 发布日期:2013-04-07
  • 基金资助:

    科技部科技基础性工作专项重点项目 (2007FY110100)

Seed Micromorphological Characteristics of Three Species of Solanaceae in Qinghai Province

ZHANG  Fa-Qi-1, GAO  Qing-Bo-1, GENG  Rui-1、2, ZHANG  Jin-Hua-1、2, WANG  Jiu-Li-1、2, CHEN  Shi-Long-1   

  1. 1 Key laboratory of Adaption and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences,
    Xining 810001, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-03-21 Online:2013-05-25 Published:2013-04-07
  • Supported by:

    科技部科技基础性工作专项重点项目 (2007FY110100)


运用扫描电镜对青藏高原地区3种茄科重要药用植物马尿泡 (Przewalskia tangutica)、曼陀罗 (Datura stramonium) 和山莨菪 (Anisodus tanguticus) 18个自然居群的种子微形态进行了观察。种子的种皮纹饰在3个不同的物种之间具有显著的差异,可以分为4种类型。与山莨菪和马尿泡在植株、花、叶等形态差异较大不同,种子大小、颜色、形状及表面纹饰等在两个物种间非常相似,说明与曼陀罗属相比,山莨菪属和马尿泡属间可能具有较近的亲缘关系。结果说明种子微形态这一稳定的性状可以作为青藏高原茄科这3个属间的分类依据,具有重要的系统学意义,但是分类决策必须要包括形态学、细胞学、孢粉学、分子生物学等证据。

关键词: 种皮纹饰, 茄科, 马尿泡, 曼陀罗, 山莨菪, 青海省


Seed micromorphology of 18 natural populations of three important medicinal plants: Przewalskia tangutica, Datura stramonium and Anisodus tanguticus, representing three genera of Solanaceae on the QinghaiTibetan Plateau was observed by Scanning Electron Microscopy (SEM) in order to evaluate this character for use in systematic analysis. Ornamentation of seed surface show significant differences among the three species, and can be divided into four types. P.tangutica is very different from A.tanguticus on plant, flower and leaf morphology. However, the two species show high similarity on seed size, color, shape and surface ornamentation compared with D.stramonium. A plausible explanation for the result is that Przewalskia L. and Anisodus  L. have closer phylogenetic relationships than Datura L. In addition, there is nearly no significant difference on seed micromorphological characteristics of the same species from different localities. Our results indicate that seed micromorphological characteristics could be an evidence for classification among the 3 genus in Solanaceae on the QinghaiTibetan Plateau and shows important systematic significance, but taxonomic decisions must be made with a full suite of morphological, cytological, palynological, molecular and other data.

Key words: Ornamentation, Solanaceae, Przewalskia tangutica, Datura stramonium, Anisodus tanguticus, Qinghai province